Cap



FIG. 1 is a front elevational view of a portion of a cap showing my new design;

FIG. 2 is a side elevational view thereof;

FIG. 3 is a side elevational view of a portion of a cap showing a second embodiment of my new design;

FIG. 4 is a side elevational view of a portion of a cap showing a third embodiment of my new design;

FIG. 5 is a side elevational view of a portion of a cap showing a fourth embodiment of my new design;

FIG. 6 is a side elevational view of a portion of a cap showing a fifth embodiment of my new design. 

The ornamental design for a portion of a cap, as shown and described. 